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// Copyright (c) 2011 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "chrome/browser/chromeos/input_method/xkeyboard.h"
#include <algorithm>
#include <set>
#include <string>
#include "base/logging.h"
#include "base/memory/scoped_ptr.h"
#include "base/message_loop.h"
#include "chrome/browser/chromeos/input_method/input_method_util.h"
#include "content/test/test_browser_thread.h"
#include "testing/gtest/include/gtest/gtest.h"
#include "ui/base/x/x11_util.h"
#include <X11/Xlib.h>
using content::BrowserThread;
#if defined(TOUCH_UI)
// Since TOUCH_UI build only supports a few keyboard layouts, we skip the tests
// for now.
#define TestCreateFullXkbLayoutNameKeepAlt \
DISABLED_TestCreateFullXkbLayoutNameKeepAlt
#define TestCreateFullXkbLayoutNameKeepCapsLock \
DISABLED_TestCreateFullXkbLayoutNameKeepCapsLock
#endif // TOUCH_UI
namespace chromeos {
namespace input_method {
namespace {
class TestableXKeyboard : public XKeyboard {
public:
explicit TestableXKeyboard(const InputMethodUtil& util) : XKeyboard(util) {
}
// Change access rights.
using XKeyboard::CreateFullXkbLayoutName;
using XKeyboard::ContainsModifierKeyAsReplacement;
};
class XKeyboardTest : public testing::Test {
public:
XKeyboardTest()
: controller_(IBusController::Create()),
util_(controller_->GetSupportedInputMethods()),
xkey_(util_),
ui_thread_(BrowserThread::UI, &message_loop_) {
}
static void SetUpTestCase() {
}
scoped_ptr<IBusController> controller_;
InputMethodUtil util_;
TestableXKeyboard xkey_;
MessageLoopForUI message_loop_;
content::TestBrowserThread ui_thread_;
};
// Returns a ModifierMap object that contains the following mapping:
// - kSearchKey is mapped to |search|.
// - kLeftControl key is mapped to |control|.
// - kLeftAlt key is mapped to |alt|.
ModifierMap GetMap(ModifierKey search, ModifierKey control, ModifierKey alt) {
ModifierMap modifier_key;
// Use the Search key as |search|.
modifier_key.push_back(ModifierKeyPair(kSearchKey, search));
modifier_key.push_back(ModifierKeyPair(kLeftControlKey, control));
modifier_key.push_back(ModifierKeyPair(kLeftAltKey, alt));
return modifier_key;
}
// Checks |modifier_map| and returns true if the following conditions are met:
// - kSearchKey is mapped to |search|.
// - kLeftControl key is mapped to |control|.
// - kLeftAlt key is mapped to |alt|.
bool CheckMap(const ModifierMap& modifier_map,
ModifierKey search, ModifierKey control, ModifierKey alt) {
ModifierMap::const_iterator begin = modifier_map.begin();
ModifierMap::const_iterator end = modifier_map.end();
if ((std::count(begin, end, ModifierKeyPair(kSearchKey, search)) == 1) &&
(std::count(begin, end,
ModifierKeyPair(kLeftControlKey, control)) == 1) &&
(std::count(begin, end, ModifierKeyPair(kLeftAltKey, alt)) == 1)) {
return true;
}
return false;
}
// Returns true if X display is available.
bool DisplayAvailable() {
return ui::GetXDisplay() ? true : false;
}
} // namespace
// Tests CreateFullXkbLayoutName() function.
TEST_F(XKeyboardTest, TestCreateFullXkbLayoutNameBasic) {
// CreateFullXkbLayoutName should not accept an empty |layout_name|.
EXPECT_STREQ("", xkey_.CreateFullXkbLayoutName(
"", GetMap(kVoidKey, kVoidKey, kVoidKey)).c_str());
// CreateFullXkbLayoutName should not accept an empty ModifierMap.
EXPECT_STREQ("", xkey_.CreateFullXkbLayoutName(
"us", ModifierMap()).c_str());
// CreateFullXkbLayoutName should not accept an incomplete ModifierMap.
ModifierMap tmp_map = GetMap(kVoidKey, kVoidKey, kVoidKey);
tmp_map.pop_back();
EXPECT_STREQ("", xkey_.CreateFullXkbLayoutName("us", tmp_map).c_str());
// CreateFullXkbLayoutName should not accept redundant ModifierMaps.
tmp_map = GetMap(kVoidKey, kVoidKey, kVoidKey);
tmp_map.push_back(ModifierKeyPair(kSearchKey, kVoidKey)); // two search maps
EXPECT_STREQ("", xkey_.CreateFullXkbLayoutName("us", tmp_map).c_str());
tmp_map = GetMap(kVoidKey, kVoidKey, kVoidKey);
tmp_map.push_back(ModifierKeyPair(kLeftControlKey, kVoidKey)); // two ctrls
EXPECT_STREQ("", xkey_.CreateFullXkbLayoutName("us", tmp_map).c_str());
tmp_map = GetMap(kVoidKey, kVoidKey, kVoidKey);
tmp_map.push_back(ModifierKeyPair(kLeftAltKey, kVoidKey)); // two alts.
EXPECT_STREQ("", xkey_.CreateFullXkbLayoutName("us", tmp_map).c_str());
// CreateFullXkbLayoutName should not accept invalid ModifierMaps.
tmp_map = GetMap(kVoidKey, kVoidKey, kVoidKey);
tmp_map.push_back(ModifierKeyPair(kVoidKey, kSearchKey)); // can't remap void
EXPECT_STREQ("", xkey_.CreateFullXkbLayoutName("us", tmp_map).c_str());
tmp_map = GetMap(kVoidKey, kVoidKey, kVoidKey);
tmp_map.push_back(ModifierKeyPair(kCapsLockKey, kSearchKey)); // ditto
EXPECT_STREQ("", xkey_.CreateFullXkbLayoutName("us", tmp_map).c_str());
// CreateFullXkbLayoutName can remap Search/Ctrl/Alt to CapsLock.
EXPECT_STREQ("us+chromeos(capslock_disabled_disabled)",
xkey_.CreateFullXkbLayoutName(
"us",
GetMap(kCapsLockKey, kVoidKey, kVoidKey)).c_str());
EXPECT_STREQ("us+chromeos(disabled_capslock_disabled)",
xkey_.CreateFullXkbLayoutName(
"us",
GetMap(kVoidKey, kCapsLockKey, kVoidKey)).c_str());
EXPECT_STREQ("us+chromeos(disabled_disabled_capslock)",
xkey_.CreateFullXkbLayoutName(
"us",
GetMap(kVoidKey, kVoidKey, kCapsLockKey)).c_str());
// CreateFullXkbLayoutName should not accept non-alphanumeric characters
// except "()-_".
EXPECT_STREQ("", xkey_.CreateFullXkbLayoutName(
"us!", GetMap(kVoidKey, kVoidKey, kVoidKey)).c_str());
EXPECT_STREQ("", xkey_.CreateFullXkbLayoutName(
"us; /bin/sh", GetMap(kVoidKey, kVoidKey, kVoidKey)).c_str());
EXPECT_STREQ("ab-c_12+chromeos(disabled_disabled_disabled),us",
xkey_.CreateFullXkbLayoutName(
"ab-c_12",
GetMap(kVoidKey, kVoidKey, kVoidKey)).c_str());
// CreateFullXkbLayoutName should not accept upper-case ascii characters.
EXPECT_STREQ("", xkey_.CreateFullXkbLayoutName(
"US", GetMap(kVoidKey, kVoidKey, kVoidKey)).c_str());
// CreateFullXkbLayoutName should accept lower-case ascii characters.
for (int c = 'a'; c <= 'z'; ++c) {
EXPECT_STRNE("", xkey_.CreateFullXkbLayoutName(
std::string(3, c),
GetMap(kVoidKey, kVoidKey, kVoidKey)).c_str());
}
// CreateFullXkbLayoutName should accept numbers.
for (int c = '0'; c <= '9'; ++c) {
EXPECT_STRNE("", xkey_.CreateFullXkbLayoutName(
std::string(3, c),
GetMap(kVoidKey, kVoidKey, kVoidKey)).c_str());
}
// CreateFullXkbLayoutName should accept a layout with a variant name.
EXPECT_STREQ("us(dvorak)+chromeos(disabled_disabled_disabled)",
xkey_.CreateFullXkbLayoutName(
"us(dvorak)",
GetMap(kVoidKey, kVoidKey, kVoidKey)).c_str());
EXPECT_STREQ("jp+chromeos(disabled_disabled_disabled),us",
xkey_.CreateFullXkbLayoutName(
"jp", // does not use AltGr, therefore no _keepralt.
GetMap(kVoidKey, kVoidKey, kVoidKey)).c_str());
// When the layout name is not "us", the second layout should be added.
EXPECT_EQ(std::string::npos, xkey_.CreateFullXkbLayoutName(
"us", GetMap(kVoidKey, kVoidKey, kVoidKey)).find(",us"));
EXPECT_EQ(std::string::npos, xkey_.CreateFullXkbLayoutName(
"us(dvorak)", GetMap(kVoidKey, kVoidKey, kVoidKey)).find(",us"));
EXPECT_NE(std::string::npos, xkey_.CreateFullXkbLayoutName(
"gb(extd)", GetMap(kVoidKey, kVoidKey, kVoidKey)).find(",us"));
EXPECT_NE(std::string::npos, xkey_.CreateFullXkbLayoutName(
"jp", GetMap(kVoidKey, kVoidKey, kVoidKey)).find(",us"));
}
TEST_F(XKeyboardTest, TestCreateFullXkbLayoutNameKeepCapsLock) {
EXPECT_STREQ("us(colemak)+chromeos(search_disabled_disabled)",
xkey_.CreateFullXkbLayoutName(
"us(colemak)",
// The 1st kVoidKey should be ignored.
GetMap(kVoidKey, kVoidKey, kVoidKey)).c_str());
EXPECT_STREQ("de(neo)+"
"chromeos(search_leftcontrol_leftcontrol_keepralt),us",
xkey_.CreateFullXkbLayoutName(
// The 1st kLeftControlKey should be ignored.
"de(neo)", GetMap(kLeftControlKey,
kLeftControlKey,
kLeftControlKey)).c_str());
EXPECT_STREQ("gb(extd)+chromeos(disabled_disabled_disabled_keepralt),us",
xkey_.CreateFullXkbLayoutName(
"gb(extd)",
GetMap(kVoidKey, kVoidKey, kVoidKey)).c_str());
}
TEST_F(XKeyboardTest, TestCreateFullXkbLayoutNameKeepAlt) {
EXPECT_STREQ("us(intl)+chromeos(disabled_disabled_disabled_keepralt)",
xkey_.CreateFullXkbLayoutName(
"us(intl)", GetMap(kVoidKey, kVoidKey, kVoidKey)).c_str());
EXPECT_STREQ("kr(kr104)+"
"chromeos(leftcontrol_leftcontrol_leftcontrol_keepralt),us",
xkey_.CreateFullXkbLayoutName(
"kr(kr104)", GetMap(kLeftControlKey,
kLeftControlKey,
kLeftControlKey)).c_str());
}
// Tests if CreateFullXkbLayoutName and ExtractLayoutNameFromFullXkbLayoutName
// functions could handle all combinations of modifier remapping.
TEST_F(XKeyboardTest, TestCreateFullXkbLayoutNameModifierKeys) {
std::set<std::string> layouts;
for (int i = 0; i < static_cast<int>(kNumModifierKeys); ++i) {
for (int j = 0; j < static_cast<int>(kNumModifierKeys); ++j) {
for (int k = 0; k < static_cast<int>(kNumModifierKeys); ++k) {
const std::string layout = xkey_.CreateFullXkbLayoutName(
"us", GetMap(ModifierKey(i), ModifierKey(j), ModifierKey(k)));
// CreateFullXkbLayoutName should succeed (i.e. should not return "".)
EXPECT_STREQ("us+", layout.substr(0, 3).c_str())
<< "layout: " << layout;
// All 4*3*3 layouts should be different.
EXPECT_TRUE(layouts.insert(layout).second) << "layout: " << layout;
}
}
}
}
TEST_F(XKeyboardTest, TestSetCapsLockIsEnabled) {
if (!DisplayAvailable()) {
return;
}
const bool initial_lock_state = XKeyboard::CapsLockIsEnabled();
XKeyboard::SetCapsLockEnabled(true);
EXPECT_TRUE(XKeyboard::CapsLockIsEnabled());
XKeyboard::SetCapsLockEnabled(false);
EXPECT_FALSE(XKeyboard::CapsLockIsEnabled());
XKeyboard::SetCapsLockEnabled(true);
EXPECT_TRUE(XKeyboard::CapsLockIsEnabled());
XKeyboard::SetCapsLockEnabled(false);
EXPECT_FALSE(XKeyboard::CapsLockIsEnabled());
XKeyboard::SetCapsLockEnabled(initial_lock_state);
}
TEST_F(XKeyboardTest, TestContainsModifierKeyAsReplacement) {
EXPECT_FALSE(TestableXKeyboard::ContainsModifierKeyAsReplacement(
GetMap(kVoidKey, kVoidKey, kVoidKey), kCapsLockKey));
EXPECT_TRUE(TestableXKeyboard::ContainsModifierKeyAsReplacement(
GetMap(kCapsLockKey, kVoidKey, kVoidKey), kCapsLockKey));
EXPECT_TRUE(TestableXKeyboard::ContainsModifierKeyAsReplacement(
GetMap(kVoidKey, kCapsLockKey, kVoidKey), kCapsLockKey));
EXPECT_TRUE(TestableXKeyboard::ContainsModifierKeyAsReplacement(
GetMap(kVoidKey, kVoidKey, kCapsLockKey), kCapsLockKey));
EXPECT_TRUE(TestableXKeyboard::ContainsModifierKeyAsReplacement(
GetMap(kCapsLockKey, kCapsLockKey, kVoidKey), kCapsLockKey));
EXPECT_TRUE(TestableXKeyboard::ContainsModifierKeyAsReplacement(
GetMap(kCapsLockKey, kCapsLockKey, kCapsLockKey), kCapsLockKey));
EXPECT_TRUE(TestableXKeyboard::ContainsModifierKeyAsReplacement(
GetMap(kSearchKey, kVoidKey, kVoidKey), kSearchKey));
}
} // namespace input_method
} // namespace chromeos
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